Korg Poly800/EX800 Users

Hi all,

I'd like to open another thread, but it's also another reply to
last "EG, filter rate, LFO,..." question.

My idea is to have a more analog look and feel. I'm thinking of
adding an endless rotating pot with increase / decrease function in
parallel to those value (up) and (down) keys.

With that pot you can tweak every parameter you have selected as on a
analog ... (something like that)

I don't have the time to do it on my own Poly, but maybe someone here
is interested and will help developping such a mod.

What we need is an endless rotating pot with 30 signals for 360°,
that's easy to buy. Then a logical interface is needed to analyse
those signals. After that those "up" and "down" triggers from that
interface have to be connected to the user interface PCB of the
synth. And, after all, a pleasant place to build in for that control
is needed.

To make a start, here is a link to an interface (sorry, it's in
german, but schematic and board is international ;-)).

http://www.harraeus.de/flugsim/doku/redec09b.pdf

What do you think, is it worth trying it?

Olaf

A Rotary encoder? like those found on the Roland Alpha Juno series?

That would be sweet... my TX81Z could use one of those too.

--- In korgpolyex@yahoogroups.com, "Olaf" <olgu@t...> wrote:
> Hi all,
>
> I'd like to open another thread, but it's also another reply to
> last "EG, filter rate, LFO,..." question.
>
> My idea is to have a more analog look and feel. I'm thinking of
> adding an endless rotating pot with increase / decrease function in
> parallel to those value (up) and (down) keys.
>
> With that pot you can tweak every parameter you have selected as on a
> analog ... (something like that)
>
> I don't have the time to do it on my own Poly, but maybe someone here
> is interested and will help developping such a mod.
>
> What we need is an endless rotating pot with 30 signals for 360°,
> that's easy to buy. Then a logical interface is needed to analyse
> those signals. After that those "up" and "down" triggers from that
> interface have to be connected to the user interface PCB of the
> synth. And, after all, a pleasant place to build in for that control
> is needed.
>
> To make a start, here is a link to an interface (sorry, it's in
> german, but schematic and board is international ;-)).
>
> http://www.harraeus.de/flugsim/doku/redec09b.pdf
>
> What do you think, is it worth trying it?
>
> Olaf

hm... should be doable, these pots are pulse driven so should fit the
up/down switches nicely

--- In korgpolyex@yahoogroups.com, "Alexander" <arf_hotdogdeity@y...>
wrote:

> A Rotary encoder? like those found on the Roland Alpha Juno series?
>
> That would be sweet... my TX81Z could use one of those too.
>
> --- In korgpolyex@yahoogroups.com, "Olaf" <olgu@t...> wrote:
> > Hi all,
> >
> > I'd like to open another thread, but it's also another reply to
> > last "EG, filter rate, LFO,..." question.
> >
> > My idea is to have a more analog look and feel. I'm thinking of
> > adding an endless rotating pot with increase / decrease function

in

> > parallel to those value (up) and (down) keys.
> >
> > With that pot you can tweak every parameter you have selected as

on a

> > analog ... (something like that)
> >
> > I don't have the time to do it on my own Poly, but maybe someone

here

> > is interested and will help developping such a mod.
> >
> > What we need is an endless rotating pot with 30 signals for 360°,
> > that's easy to buy. Then a logical interface is needed to analyse
> > those signals. After that those "up" and "down" triggers from

that

> > interface have to be connected to the user interface PCB of the
> > synth. And, after all, a pleasant place to build in for that

control

> > is needed.
> >
> > To make a start, here is a link to an interface (sorry, it's in
> > german, but schematic and board is international ;-)).
> >
> > http://www.harraeus.de/flugsim/doku/redec09b.pdf
> >
> > What do you think, is it worth trying it?
> >
> > Olaf